./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c50dd7e64abcc7a7eef6ea31e37156afb1e4322422284686cac6e6613b192c7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:19:13,382 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:19:13,436 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 03:19:13,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:19:13,441 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:19:13,463 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:19:13,464 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:19:13,464 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:19:13,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:19:13,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:19:13,464 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:19:13,465 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:19:13,465 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:19:13,465 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:19:13,465 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:19:13,465 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:19:13,465 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:19:13,465 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:19:13,467 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:19:13,467 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:19:13,467 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:19:13,467 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:19:13,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:19:13,467 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:19:13,468 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:19:13,468 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:19:13,468 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:19:13,468 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:19:13,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:19:13,468 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:19:13,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:19:13,468 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:19:13,468 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:19:13,468 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:19:13,468 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:19:13,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:19:13,468 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:19:13,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:19:13,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:19:13,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:19:13,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:19:13,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:19:13,469 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:19:13,469 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:19:13,469 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:19:13,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:19:13,469 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:19:13,469 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:19:13,469 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:19:13,470 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c50dd7e64abcc7a7eef6ea31e37156afb1e4322422284686cac6e6613b192c7 [2024-11-14 03:19:13,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:19:13,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:19:13,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:19:13,840 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:19:13,840 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:19:13,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound10.c Unable to find full path for "g++" [2024-11-14 03:19:15,869 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:19:16,121 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:19:16,122 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound10.c [2024-11-14 03:19:16,133 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/data/4cccfaf4f/3b75c346400c409f95f50461808084c7/FLAG20aac8e1a [2024-11-14 03:19:16,160 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/data/4cccfaf4f/3b75c346400c409f95f50461808084c7 [2024-11-14 03:19:16,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:19:16,167 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:19:16,169 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:19:16,173 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:19:16,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:19:16,184 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:19:16" (1/1) ... [2024-11-14 03:19:16,185 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d32dd82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:19:16, skipping insertion in model container [2024-11-14 03:19:16,187 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:19:16" (1/1) ... [2024-11-14 03:19:16,206 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:19:16,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:19:16,456 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:19:16,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:19:16,516 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:19:16,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:19:16 WrapperNode [2024-11-14 03:19:16,519 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:19:16,521 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:19:16,521 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:19:16,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:19:16,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:19:16" (1/1) ... [2024-11-14 03:19:16,542 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:19:16" (1/1) ... [2024-11-14 03:19:16,590 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 134 [2024-11-14 03:19:16,594 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:19:16,595 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:19:16,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:19:16,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:19:16,605 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:19:16" (1/1) ... [2024-11-14 03:19:16,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:19:16" (1/1) ... [2024-11-14 03:19:16,607 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:19:16" (1/1) ... [2024-11-14 03:19:16,607 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:19:16" (1/1) ... [2024-11-14 03:19:16,612 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:19:16" (1/1) ... [2024-11-14 03:19:16,616 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:19:16" (1/1) ... [2024-11-14 03:19:16,618 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:19:16" (1/1) ... [2024-11-14 03:19:16,619 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:19:16" (1/1) ... [2024-11-14 03:19:16,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:19:16,623 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:19:16,623 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:19:16,623 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:19:16,624 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:19:16" (1/1) ... [2024-11-14 03:19:16,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:19:16,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:19:16,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:19:16,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:19:16,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:19:16,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:19:16,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:19:16,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:19:16,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:19:16,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:19:16,799 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:19:16,801 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:19:17,419 INFO L? ?]: Removed 92 outVars from TransFormulas that were not future-live. [2024-11-14 03:19:17,419 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:19:17,507 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:19:17,508 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:19:17,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:19:17 BoogieIcfgContainer [2024-11-14 03:19:17,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:19:17,513 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:19:17,513 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:19:17,518 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:19:17,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:19:16" (1/3) ... [2024-11-14 03:19:17,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5a80f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:19:17, skipping insertion in model container [2024-11-14 03:19:17,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:19:16" (2/3) ... [2024-11-14 03:19:17,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5a80f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:19:17, skipping insertion in model container [2024-11-14 03:19:17,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:19:17" (3/3) ... [2024-11-14 03:19:17,522 INFO L112 eAbstractionObserver]: Analyzing ICFG ps5-ll_unwindbound10.c [2024-11-14 03:19:17,542 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:19:17,544 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG ps5-ll_unwindbound10.c that has 2 procedures, 183 locations, 1 initial locations, 1 loop locations, and 86 error locations. [2024-11-14 03:19:17,623 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:19:17,638 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@c3008aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:19:17,639 INFO L334 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2024-11-14 03:19:17,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 92 states have (on average 1.9673913043478262) internal successors, (181), 178 states have internal predecessors, (181), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:19:17,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:19:17,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:19:17,652 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:19:17,653 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:19:17,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:19:17,660 INFO L85 PathProgramCache]: Analyzing trace with hash 258571, now seen corresponding path program 1 times [2024-11-14 03:19:17,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:19:17,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120439067] [2024-11-14 03:19:17,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:17,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:19:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:17,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:19:17,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:19:17,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120439067] [2024-11-14 03:19:17,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120439067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:19:17,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:19:17,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:19:17,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101872051] [2024-11-14 03:19:17,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:19:17,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:19:17,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:19:17,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:19:17,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:19:17,861 INFO L87 Difference]: Start difference. First operand has 183 states, 92 states have (on average 1.9673913043478262) internal successors, (181), 178 states have internal predecessors, (181), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:19:17,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:19:17,910 INFO L93 Difference]: Finished difference Result 259 states and 269 transitions. [2024-11-14 03:19:17,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:19:17,913 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-14 03:19:17,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:19:17,918 INFO L225 Difference]: With dead ends: 259 [2024-11-14 03:19:17,918 INFO L226 Difference]: Without dead ends: 167 [2024-11-14 03:19:17,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:19:17,924 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:19:17,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 170 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:19:17,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-14 03:19:17,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-14 03:19:17,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 91 states have (on average 1.8131868131868132) internal successors, (165), 163 states have internal predecessors, (165), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:19:17,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 169 transitions. [2024-11-14 03:19:17,967 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 169 transitions. Word has length 3 [2024-11-14 03:19:17,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:19:17,969 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 169 transitions. [2024-11-14 03:19:17,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:19:17,969 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 169 transitions. [2024-11-14 03:19:17,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:19:17,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:19:17,970 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:19:17,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:19:17,970 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:19:17,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:19:17,972 INFO L85 PathProgramCache]: Analyzing trace with hash 255082, now seen corresponding path program 1 times [2024-11-14 03:19:17,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:19:17,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810598342] [2024-11-14 03:19:17,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:17,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:19:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:18,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:19:18,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:19:18,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810598342] [2024-11-14 03:19:18,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810598342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:19:18,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:19:18,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:19:18,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198641955] [2024-11-14 03:19:18,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:19:18,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:19:18,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:19:18,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:19:18,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:19:18,094 INFO L87 Difference]: Start difference. First operand 167 states and 169 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:19:18,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:19:18,168 INFO L93 Difference]: Finished difference Result 167 states and 169 transitions. [2024-11-14 03:19:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:19:18,168 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-14 03:19:18,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:19:18,170 INFO L225 Difference]: With dead ends: 167 [2024-11-14 03:19:18,170 INFO L226 Difference]: Without dead ends: 166 [2024-11-14 03:19:18,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:19:18,171 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 168 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:19:18,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 320 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:19:18,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-14 03:19:18,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-11-14 03:19:18,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 91 states have (on average 1.8021978021978022) internal successors, (164), 162 states have internal predecessors, (164), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:19:18,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 168 transitions. [2024-11-14 03:19:18,182 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 168 transitions. Word has length 3 [2024-11-14 03:19:18,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:19:18,182 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 168 transitions. [2024-11-14 03:19:18,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:19:18,183 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 168 transitions. [2024-11-14 03:19:18,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 03:19:18,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:19:18,183 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 03:19:18,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:19:18,183 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:19:18,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:19:18,184 INFO L85 PathProgramCache]: Analyzing trace with hash 7907589, now seen corresponding path program 1 times [2024-11-14 03:19:18,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:19:18,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280964908] [2024-11-14 03:19:18,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:18,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:19:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:18,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:19:18,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:19:18,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280964908] [2024-11-14 03:19:18,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280964908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:19:18,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:19:18,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:19:18,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981079274] [2024-11-14 03:19:18,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:19:18,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:19:18,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:19:18,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:19:18,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:19:18,266 INFO L87 Difference]: Start difference. First operand 166 states and 168 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:19:18,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:19:18,339 INFO L93 Difference]: Finished difference Result 244 states and 246 transitions. [2024-11-14 03:19:18,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:19:18,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-14 03:19:18,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:19:18,342 INFO L225 Difference]: With dead ends: 244 [2024-11-14 03:19:18,344 INFO L226 Difference]: Without dead ends: 170 [2024-11-14 03:19:18,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:19:18,346 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 3 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:19:18,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 485 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:19:18,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-14 03:19:18,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2024-11-14 03:19:18,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 95 states have (on average 1.768421052631579) internal successors, (168), 166 states have internal predecessors, (168), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:19:18,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 172 transitions. [2024-11-14 03:19:18,371 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 172 transitions. Word has length 4 [2024-11-14 03:19:18,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:19:18,371 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 172 transitions. [2024-11-14 03:19:18,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:19:18,371 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 172 transitions. [2024-11-14 03:19:18,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 03:19:18,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:19:18,372 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 03:19:18,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:19:18,372 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:19:18,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:19:18,372 INFO L85 PathProgramCache]: Analyzing trace with hash -990739897, now seen corresponding path program 1 times [2024-11-14 03:19:18,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:19:18,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112611356] [2024-11-14 03:19:18,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:18,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:19:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:18,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:19:18,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:19:18,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112611356] [2024-11-14 03:19:18,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112611356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:19:18,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:19:18,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:19:18,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706753613] [2024-11-14 03:19:18,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:19:18,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:19:18,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:19:18,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:19:18,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:19:18,437 INFO L87 Difference]: Start difference. First operand 170 states and 172 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:19:18,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:19:18,901 INFO L93 Difference]: Finished difference Result 306 states and 318 transitions. [2024-11-14 03:19:18,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:19:18,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-14 03:19:18,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:19:18,903 INFO L225 Difference]: With dead ends: 306 [2024-11-14 03:19:18,903 INFO L226 Difference]: Without dead ends: 250 [2024-11-14 03:19:18,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:19:18,904 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 82 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:19:18,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 113 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:19:18,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-14 03:19:18,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 244. [2024-11-14 03:19:18,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 168 states have (on average 1.5178571428571428) internal successors, (255), 239 states have internal predecessors, (255), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:19:18,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 261 transitions. [2024-11-14 03:19:18,918 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 261 transitions. Word has length 6 [2024-11-14 03:19:18,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:19:18,918 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 261 transitions. [2024-11-14 03:19:18,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:19:18,918 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 261 transitions. [2024-11-14 03:19:18,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-14 03:19:18,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:19:18,919 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:19:18,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:19:18,919 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:19:18,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:19:18,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1625545699, now seen corresponding path program 1 times [2024-11-14 03:19:18,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:19:18,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155150115] [2024-11-14 03:19:18,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:18,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:19:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:19,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:19:19,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:19:19,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155150115] [2024-11-14 03:19:19,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155150115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:19:19,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:19:19,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:19:19,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100560831] [2024-11-14 03:19:19,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:19:19,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:19:19,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:19:19,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:19:19,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:19:19,069 INFO L87 Difference]: Start difference. First operand 244 states and 261 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:19:19,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:19:19,182 INFO L93 Difference]: Finished difference Result 263 states and 275 transitions. [2024-11-14 03:19:19,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:19:19,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-11-14 03:19:19,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:19:19,184 INFO L225 Difference]: With dead ends: 263 [2024-11-14 03:19:19,184 INFO L226 Difference]: Without dead ends: 258 [2024-11-14 03:19:19,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:19:19,185 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 58 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:19:19,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 282 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:19:19,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-14 03:19:19,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 251. [2024-11-14 03:19:19,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 175 states have (on average 1.497142857142857) internal successors, (262), 246 states have internal predecessors, (262), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:19:19,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 268 transitions. [2024-11-14 03:19:19,197 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 268 transitions. Word has length 34 [2024-11-14 03:19:19,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:19:19,198 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 268 transitions. [2024-11-14 03:19:19,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:19:19,198 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 268 transitions. [2024-11-14 03:19:19,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-14 03:19:19,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:19:19,199 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:19:19,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:19:19,199 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:19:19,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:19:19,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1218675419, now seen corresponding path program 1 times [2024-11-14 03:19:19,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:19:19,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537348949] [2024-11-14 03:19:19,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:19,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:19:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:19,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:19:19,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:19:19,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537348949] [2024-11-14 03:19:19,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537348949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:19:19,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:19:19,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:19:19,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062513848] [2024-11-14 03:19:19,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:19:19,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:19:19,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:19:19,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:19:19,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:19:19,392 INFO L87 Difference]: Start difference. First operand 251 states and 268 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:19:19,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:19:19,650 INFO L93 Difference]: Finished difference Result 262 states and 270 transitions. [2024-11-14 03:19:19,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:19:19,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-14 03:19:19,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:19:19,653 INFO L225 Difference]: With dead ends: 262 [2024-11-14 03:19:19,653 INFO L226 Difference]: Without dead ends: 257 [2024-11-14 03:19:19,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:19:19,655 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 136 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:19:19,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 219 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:19:19,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-11-14 03:19:19,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 251. [2024-11-14 03:19:19,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 175 states have (on average 1.4685714285714286) internal successors, (257), 246 states have internal predecessors, (257), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:19:19,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 263 transitions. [2024-11-14 03:19:19,678 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 263 transitions. Word has length 36 [2024-11-14 03:19:19,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:19:19,678 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 263 transitions. [2024-11-14 03:19:19,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:19:19,679 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 263 transitions. [2024-11-14 03:19:19,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-14 03:19:19,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:19:19,679 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:19:19,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 03:19:19,683 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:19:19,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:19:19,683 INFO L85 PathProgramCache]: Analyzing trace with hash 875767791, now seen corresponding path program 1 times [2024-11-14 03:19:19,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:19:19,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502536605] [2024-11-14 03:19:19,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:19,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:19:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:19,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:19:19,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:19:19,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502536605] [2024-11-14 03:19:19,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502536605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:19:19,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:19:19,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:19:19,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327039269] [2024-11-14 03:19:19,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:19:19,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:19:19,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:19:19,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:19:19,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:19:19,849 INFO L87 Difference]: Start difference. First operand 251 states and 263 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:19:20,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:19:20,559 INFO L93 Difference]: Finished difference Result 261 states and 265 transitions. [2024-11-14 03:19:20,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:19:20,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-14 03:19:20,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:19:20,564 INFO L225 Difference]: With dead ends: 261 [2024-11-14 03:19:20,564 INFO L226 Difference]: Without dead ends: 223 [2024-11-14 03:19:20,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:19:20,565 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 85 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:19:20,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 248 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:19:20,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-14 03:19:20,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 217. [2024-11-14 03:19:20,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 141 states have (on average 1.553191489361702) internal successors, (219), 212 states have internal predecessors, (219), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:19:20,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 225 transitions. [2024-11-14 03:19:20,581 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 225 transitions. Word has length 37 [2024-11-14 03:19:20,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:19:20,582 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 225 transitions. [2024-11-14 03:19:20,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:19:20,582 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 225 transitions. [2024-11-14 03:19:20,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-14 03:19:20,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:19:20,583 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:19:20,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 03:19:20,583 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:19:20,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:19:20,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1031677955, now seen corresponding path program 1 times [2024-11-14 03:19:20,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:19:20,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641410496] [2024-11-14 03:19:20,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:20,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:19:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:20,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:19:20,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:19:20,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641410496] [2024-11-14 03:19:20,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641410496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:19:20,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:19:20,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:19:20,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106035754] [2024-11-14 03:19:20,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:19:20,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:19:20,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:19:20,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:19:20,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:19:20,675 INFO L87 Difference]: Start difference. First operand 217 states and 225 transitions. Second operand has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 03:19:20,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:19:20,701 INFO L93 Difference]: Finished difference Result 219 states and 225 transitions. [2024-11-14 03:19:20,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:19:20,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2024-11-14 03:19:20,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:19:20,703 INFO L225 Difference]: With dead ends: 219 [2024-11-14 03:19:20,703 INFO L226 Difference]: Without dead ends: 217 [2024-11-14 03:19:20,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:19:20,704 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 1 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:19:20,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 323 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:19:20,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-14 03:19:20,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2024-11-14 03:19:20,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 141 states have (on average 1.5390070921985815) internal successors, (217), 212 states have internal predecessors, (217), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:19:20,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 223 transitions. [2024-11-14 03:19:20,715 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 223 transitions. Word has length 44 [2024-11-14 03:19:20,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:19:20,716 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 223 transitions. [2024-11-14 03:19:20,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 03:19:20,716 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 223 transitions. [2024-11-14 03:19:20,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-14 03:19:20,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:19:20,717 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:19:20,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 03:19:20,718 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:19:20,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:19:20,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1059886761, now seen corresponding path program 1 times [2024-11-14 03:19:20,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:19:20,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704097484] [2024-11-14 03:19:20,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:20,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:19:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:19:20,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1101287935] [2024-11-14 03:19:20,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:20,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:19:20,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:19:20,742 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:19:20,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:19:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:20,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:19:20,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:19:20,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:19:20,968 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:19:20,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:19:20,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704097484] [2024-11-14 03:19:20,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:19:20,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101287935] [2024-11-14 03:19:20,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101287935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:19:20,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:19:20,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:19:20,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908095778] [2024-11-14 03:19:20,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:19:20,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:19:20,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:19:20,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:19:20,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:19:20,975 INFO L87 Difference]: Start difference. First operand 217 states and 223 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 03:19:21,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:19:21,514 INFO L93 Difference]: Finished difference Result 360 states and 377 transitions. [2024-11-14 03:19:21,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:19:21,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2024-11-14 03:19:21,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:19:21,516 INFO L225 Difference]: With dead ends: 360 [2024-11-14 03:19:21,517 INFO L226 Difference]: Without dead ends: 306 [2024-11-14 03:19:21,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:19:21,518 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 95 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:19:21,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 136 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:19:21,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-14 03:19:21,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 299. [2024-11-14 03:19:21,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 221 states have (on average 1.416289592760181) internal successors, (313), 292 states have internal predecessors, (313), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:19:21,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 323 transitions. [2024-11-14 03:19:21,531 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 323 transitions. Word has length 49 [2024-11-14 03:19:21,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:19:21,531 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 323 transitions. [2024-11-14 03:19:21,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 03:19:21,532 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 323 transitions. [2024-11-14 03:19:21,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-14 03:19:21,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:19:21,533 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:19:21,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:19:21,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-14 03:19:21,736 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:19:21,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:19:21,737 INFO L85 PathProgramCache]: Analyzing trace with hash -136552337, now seen corresponding path program 1 times [2024-11-14 03:19:21,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:19:21,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659933699] [2024-11-14 03:19:21,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:21,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:19:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:21,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:19:21,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:19:21,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659933699] [2024-11-14 03:19:21,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659933699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:19:21,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:19:21,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:19:21,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373710803] [2024-11-14 03:19:21,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:19:21,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:19:21,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:19:21,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:19:21,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:19:21,883 INFO L87 Difference]: Start difference. First operand 299 states and 323 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 03:19:24,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:19:26,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:19:26,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:19:26,343 INFO L93 Difference]: Finished difference Result 300 states and 323 transitions. [2024-11-14 03:19:26,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:19:26,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2024-11-14 03:19:26,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:19:26,346 INFO L225 Difference]: With dead ends: 300 [2024-11-14 03:19:26,346 INFO L226 Difference]: Without dead ends: 299 [2024-11-14 03:19:26,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:19:26,347 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 42 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:19:26,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 282 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 218 Invalid, 2 Unknown, 0 Unchecked, 4.4s Time] [2024-11-14 03:19:26,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-14 03:19:26,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2024-11-14 03:19:26,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 221 states have (on average 1.411764705882353) internal successors, (312), 292 states have internal predecessors, (312), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:19:26,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 322 transitions. [2024-11-14 03:19:26,360 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 322 transitions. Word has length 55 [2024-11-14 03:19:26,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:19:26,360 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 322 transitions. [2024-11-14 03:19:26,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 03:19:26,361 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 322 transitions. [2024-11-14 03:19:26,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-14 03:19:26,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:19:26,362 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:19:26,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 03:19:26,362 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:19:26,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:19:26,363 INFO L85 PathProgramCache]: Analyzing trace with hash -696599490, now seen corresponding path program 1 times [2024-11-14 03:19:26,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:19:26,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104867449] [2024-11-14 03:19:26,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:26,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:19:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:26,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:19:26,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:19:26,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104867449] [2024-11-14 03:19:26,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104867449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:19:26,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797879235] [2024-11-14 03:19:26,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:26,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:19:26,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:19:26,507 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:19:26,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:19:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:26,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:19:26,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:19:26,731 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:19:26,732 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:19:26,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797879235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:19:26,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:19:26,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-14 03:19:26,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667838014] [2024-11-14 03:19:26,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:19:26,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:19:26,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:19:26,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:19:26,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:19:26,734 INFO L87 Difference]: Start difference. First operand 299 states and 322 transitions. Second operand has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 03:19:26,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:19:26,804 INFO L93 Difference]: Finished difference Result 409 states and 439 transitions. [2024-11-14 03:19:26,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:19:26,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2024-11-14 03:19:26,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:19:26,807 INFO L225 Difference]: With dead ends: 409 [2024-11-14 03:19:26,807 INFO L226 Difference]: Without dead ends: 408 [2024-11-14 03:19:26,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:19:26,809 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 115 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:19:26,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 760 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:19:26,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-14 03:19:26,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 370. [2024-11-14 03:19:26,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 290 states have (on average 1.4275862068965517) internal successors, (414), 362 states have internal predecessors, (414), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:19:26,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 428 transitions. [2024-11-14 03:19:26,829 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 428 transitions. Word has length 58 [2024-11-14 03:19:26,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:19:26,830 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 428 transitions. [2024-11-14 03:19:26,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 03:19:26,830 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 428 transitions. [2024-11-14 03:19:26,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 03:19:26,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:19:26,833 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:19:26,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 03:19:27,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-14 03:19:27,034 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr76ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:19:27,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:19:27,034 INFO L85 PathProgramCache]: Analyzing trace with hash -2083516989, now seen corresponding path program 1 times [2024-11-14 03:19:27,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:19:27,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224982212] [2024-11-14 03:19:27,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:27,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:19:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:27,163 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:19:27,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:19:27,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224982212] [2024-11-14 03:19:27,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224982212] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:19:27,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077145212] [2024-11-14 03:19:27,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:27,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:19:27,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:19:27,166 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:19:27,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:19:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:27,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:19:27,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:19:27,356 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:19:27,357 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:19:27,554 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:19:27,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077145212] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:19:27,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2060629625] [2024-11-14 03:19:27,585 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2024-11-14 03:19:27,585 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:19:27,588 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:19:27,594 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:19:27,594 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:19:33,829 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-14 03:19:33,858 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:20:03,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2060629625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:03,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:20:03,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [6, 5, 6] total 30 [2024-11-14 03:20:03,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828467781] [2024-11-14 03:20:03,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:03,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 03:20:03,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:03,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 03:20:03,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=750, Unknown=2, NotChecked=0, Total=870 [2024-11-14 03:20:03,111 INFO L87 Difference]: Start difference. First operand 370 states and 428 transitions. Second operand has 22 states, 20 states have (on average 4.15) internal successors, (83), 19 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 03:20:09,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:20:11,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:11,223 INFO L93 Difference]: Finished difference Result 397 states and 438 transitions. [2024-11-14 03:20:11,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-14 03:20:11,223 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 4.15) internal successors, (83), 19 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2024-11-14 03:20:11,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:11,225 INFO L225 Difference]: With dead ends: 397 [2024-11-14 03:20:11,225 INFO L226 Difference]: Without dead ends: 258 [2024-11-14 03:20:11,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 182 SyntacticMatches, 58 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1507 ImplicationChecksByTransitivity, 31.0s TimeCoverageRelationStatistics Valid=263, Invalid=1457, Unknown=2, NotChecked=0, Total=1722 [2024-11-14 03:20:11,227 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 302 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 99 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:11,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 13 Invalid, 1919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1819 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2024-11-14 03:20:11,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-14 03:20:11,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 245. [2024-11-14 03:20:11,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 218 states have (on average 1.1055045871559632) internal successors, (241), 238 states have internal predecessors, (241), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 03:20:11,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 249 transitions. [2024-11-14 03:20:11,244 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 249 transitions. Word has length 88 [2024-11-14 03:20:11,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:11,244 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 249 transitions. [2024-11-14 03:20:11,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 4.15) internal successors, (83), 19 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 03:20:11,245 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 249 transitions. [2024-11-14 03:20:11,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-14 03:20:11,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:11,247 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:11,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 03:20:11,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:11,448 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:20:11,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:11,449 INFO L85 PathProgramCache]: Analyzing trace with hash -2047502459, now seen corresponding path program 1 times [2024-11-14 03:20:11,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:11,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629399118] [2024-11-14 03:20:11,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:11,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:11,821 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:20:11,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:11,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629399118] [2024-11-14 03:20:11,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629399118] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:20:11,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712737904] [2024-11-14 03:20:11,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:11,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:11,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:11,824 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:11,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:20:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:11,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:20:11,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:12,122 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:20:12,122 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:20:12,389 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:20:12,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712737904] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:20:12,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1380783754] [2024-11-14 03:20:12,393 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-14 03:20:12,393 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:20:12,394 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:20:12,394 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:20:12,394 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:20:15,709 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-14 03:20:15,733 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:20:34,030 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8426#(and (<= 11 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_192| Int)) (and (= (+ (* 15 (* |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192|)) (* 6 (* |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192|)) (* (* |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192|) 10)) (+ |v_ULTIMATE.start_main_~y~0#1_192| (* 30 |ULTIMATE.start_main_~x~0#1|))) (<= |ULTIMATE.start_main_~x~0#1| (+ (* |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192|) 307445734561825860)) (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192|)))) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-14 03:20:34,030 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:20:34,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:20:34,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2024-11-14 03:20:34,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120094462] [2024-11-14 03:20:34,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:20:34,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 03:20:34,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:34,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 03:20:34,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=986, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 03:20:34,033 INFO L87 Difference]: Start difference. First operand 245 states and 249 transitions. Second operand has 14 states, 14 states have (on average 16.214285714285715) internal successors, (227), 14 states have internal predecessors, (227), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-14 03:20:34,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:34,436 INFO L93 Difference]: Finished difference Result 637 states and 641 transitions. [2024-11-14 03:20:34,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-14 03:20:34,437 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 16.214285714285715) internal successors, (227), 14 states have internal predecessors, (227), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 123 [2024-11-14 03:20:34,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:34,439 INFO L225 Difference]: With dead ends: 637 [2024-11-14 03:20:34,439 INFO L226 Difference]: Without dead ends: 626 [2024-11-14 03:20:34,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 269 SyntacticMatches, 74 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2533 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=290, Invalid=1690, Unknown=0, NotChecked=0, Total=1980 [2024-11-14 03:20:34,443 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 403 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:34,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 957 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:20:34,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-11-14 03:20:34,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 427. [2024-11-14 03:20:34,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 392 states have (on average 1.0739795918367347) internal successors, (421), 412 states have internal predecessors, (421), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:20:34,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 435 transitions. [2024-11-14 03:20:34,476 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 435 transitions. Word has length 123 [2024-11-14 03:20:34,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:34,477 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 435 transitions. [2024-11-14 03:20:34,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.214285714285715) internal successors, (227), 14 states have internal predecessors, (227), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-14 03:20:34,477 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 435 transitions. [2024-11-14 03:20:34,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-14 03:20:34,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:34,479 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2024-11-14 03:20:34,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 03:20:34,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-14 03:20:34,683 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:20:34,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:34,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1124158951, now seen corresponding path program 1 times [2024-11-14 03:20:34,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:34,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751012388] [2024-11-14 03:20:34,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:34,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:20:34,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [104570453] [2024-11-14 03:20:34,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:34,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:34,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:34,724 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:34,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:20:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:34,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:20:34,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:34,979 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:20:34,979 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:20:35,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:35,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751012388] [2024-11-14 03:20:35,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:20:35,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104570453] [2024-11-14 03:20:35,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104570453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:20:35,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1753158352] [2024-11-14 03:20:35,129 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-14 03:20:35,129 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:20:35,131 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:20:35,131 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:20:35,131 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:20:37,310 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-14 03:20:37,326 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:20:49,886 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10057#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y~0#1_200| Int)) (and (<= (* |v_ULTIMATE.start_main_~y~0#1_200| |v_ULTIMATE.start_main_~y~0#1_200| |v_ULTIMATE.start_main_~y~0#1_200| |v_ULTIMATE.start_main_~y~0#1_200|) 1537228672809129301) (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_200| |v_ULTIMATE.start_main_~y~0#1_200| |v_ULTIMATE.start_main_~y~0#1_200| |v_ULTIMATE.start_main_~y~0#1_200| |v_ULTIMATE.start_main_~y~0#1_200|)))) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-14 03:20:49,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:20:49,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:20:49,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-14 03:20:49,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004518601] [2024-11-14 03:20:49,887 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:20:49,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:20:49,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:49,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:20:49,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2024-11-14 03:20:49,889 INFO L87 Difference]: Start difference. First operand 427 states and 435 transitions. Second operand has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:50,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:50,338 INFO L93 Difference]: Finished difference Result 483 states and 509 transitions. [2024-11-14 03:20:50,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:20:50,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 123 [2024-11-14 03:20:50,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:50,340 INFO L225 Difference]: With dead ends: 483 [2024-11-14 03:20:50,341 INFO L226 Difference]: Without dead ends: 477 [2024-11-14 03:20:50,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 179 SyntacticMatches, 70 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1377 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2024-11-14 03:20:50,342 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 143 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:50,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 75 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:20:50,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-14 03:20:50,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 454. [2024-11-14 03:20:50,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 419 states have (on average 1.0835322195704058) internal successors, (454), 439 states have internal predecessors, (454), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:20:50,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 468 transitions. [2024-11-14 03:20:50,368 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 468 transitions. Word has length 123 [2024-11-14 03:20:50,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:50,368 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 468 transitions. [2024-11-14 03:20:50,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:50,368 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 468 transitions. [2024-11-14 03:20:50,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-14 03:20:50,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:50,370 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:50,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 03:20:50,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-14 03:20:50,571 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr76ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:20:50,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:50,572 INFO L85 PathProgramCache]: Analyzing trace with hash -2112854417, now seen corresponding path program 1 times [2024-11-14 03:20:50,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:50,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327140773] [2024-11-14 03:20:50,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:50,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:50,641 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-14 03:20:50,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:50,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327140773] [2024-11-14 03:20:50,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327140773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:50,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:50,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:20:50,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707689415] [2024-11-14 03:20:50,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:50,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:20:50,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:50,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:20:50,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:20:50,643 INFO L87 Difference]: Start difference. First operand 454 states and 468 transitions. Second operand has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:50,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:50,703 INFO L93 Difference]: Finished difference Result 454 states and 468 transitions. [2024-11-14 03:20:50,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:20:50,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 126 [2024-11-14 03:20:50,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:50,705 INFO L225 Difference]: With dead ends: 454 [2024-11-14 03:20:50,706 INFO L226 Difference]: Without dead ends: 453 [2024-11-14 03:20:50,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:20:50,707 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 67 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:50,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 95 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:20:50,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-14 03:20:50,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2024-11-14 03:20:50,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 419 states have (on average 1.081145584725537) internal successors, (453), 438 states have internal predecessors, (453), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:20:50,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 467 transitions. [2024-11-14 03:20:50,733 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 467 transitions. Word has length 126 [2024-11-14 03:20:50,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:50,733 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 467 transitions. [2024-11-14 03:20:50,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:50,733 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 467 transitions. [2024-11-14 03:20:50,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-14 03:20:50,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:50,735 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:50,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 03:20:50,735 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr77ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:20:50,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:50,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1073977274, now seen corresponding path program 1 times [2024-11-14 03:20:50,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:50,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89832862] [2024-11-14 03:20:50,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:50,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:50,805 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-14 03:20:50,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:50,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89832862] [2024-11-14 03:20:50,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89832862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:50,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:50,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:20:50,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718305241] [2024-11-14 03:20:50,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:50,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:20:50,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:50,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:20:50,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:20:50,809 INFO L87 Difference]: Start difference. First operand 453 states and 467 transitions. Second operand has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:50,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:50,864 INFO L93 Difference]: Finished difference Result 454 states and 467 transitions. [2024-11-14 03:20:50,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:20:50,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 127 [2024-11-14 03:20:50,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:50,866 INFO L225 Difference]: With dead ends: 454 [2024-11-14 03:20:50,866 INFO L226 Difference]: Without dead ends: 453 [2024-11-14 03:20:50,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:20:50,867 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 65 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:50,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 139 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:20:50,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-14 03:20:50,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 452. [2024-11-14 03:20:50,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 419 states have (on average 1.0787589498806682) internal successors, (452), 437 states have internal predecessors, (452), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:20:50,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 466 transitions. [2024-11-14 03:20:50,890 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 466 transitions. Word has length 127 [2024-11-14 03:20:50,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:50,891 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 466 transitions. [2024-11-14 03:20:50,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:50,891 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 466 transitions. [2024-11-14 03:20:50,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-14 03:20:50,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:50,892 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:50,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 03:20:50,893 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:20:50,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:50,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1066443089, now seen corresponding path program 1 times [2024-11-14 03:20:50,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:50,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565572387] [2024-11-14 03:20:50,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:50,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:50,966 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-14 03:20:50,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:50,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565572387] [2024-11-14 03:20:50,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565572387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:50,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:50,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:20:50,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380355192] [2024-11-14 03:20:50,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:50,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:20:50,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:50,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:20:50,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:20:50,969 INFO L87 Difference]: Start difference. First operand 452 states and 466 transitions. Second operand has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:51,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:51,603 INFO L93 Difference]: Finished difference Result 452 states and 466 transitions. [2024-11-14 03:20:51,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:20:51,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 128 [2024-11-14 03:20:51,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:51,605 INFO L225 Difference]: With dead ends: 452 [2024-11-14 03:20:51,605 INFO L226 Difference]: Without dead ends: 451 [2024-11-14 03:20:51,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:20:51,606 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 50 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:51,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 21 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:20:51,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-14 03:20:51,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 451. [2024-11-14 03:20:51,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 419 states have (on average 1.0763723150357996) internal successors, (451), 436 states have internal predecessors, (451), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:20:51,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 465 transitions. [2024-11-14 03:20:51,629 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 465 transitions. Word has length 128 [2024-11-14 03:20:51,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:51,630 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 465 transitions. [2024-11-14 03:20:51,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:51,630 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 465 transitions. [2024-11-14 03:20:51,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-14 03:20:51,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:51,631 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:51,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 03:20:51,632 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:20:51,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:51,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1300002392, now seen corresponding path program 1 times [2024-11-14 03:20:51,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:51,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951246068] [2024-11-14 03:20:51,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:51,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:51,709 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-14 03:20:51,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:51,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951246068] [2024-11-14 03:20:51,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951246068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:51,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:51,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:20:51,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383466620] [2024-11-14 03:20:51,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:51,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:20:51,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:51,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:20:51,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:20:51,711 INFO L87 Difference]: Start difference. First operand 451 states and 465 transitions. Second operand has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:52,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:52,920 INFO L93 Difference]: Finished difference Result 451 states and 465 transitions. [2024-11-14 03:20:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:20:52,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 129 [2024-11-14 03:20:52,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:52,926 INFO L225 Difference]: With dead ends: 451 [2024-11-14 03:20:52,926 INFO L226 Difference]: Without dead ends: 450 [2024-11-14 03:20:52,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:20:52,927 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 43 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:52,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 29 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-14 03:20:52,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-14 03:20:52,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2024-11-14 03:20:52,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 419 states have (on average 1.0739856801909309) internal successors, (450), 435 states have internal predecessors, (450), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:20:52,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 464 transitions. [2024-11-14 03:20:52,956 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 464 transitions. Word has length 129 [2024-11-14 03:20:52,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:52,956 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 464 transitions. [2024-11-14 03:20:52,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:52,956 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 464 transitions. [2024-11-14 03:20:52,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-14 03:20:52,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:52,959 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:52,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-14 03:20:52,959 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:20:52,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:52,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1645368269, now seen corresponding path program 1 times [2024-11-14 03:20:52,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:52,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901390458] [2024-11-14 03:20:52,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:52,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:53,054 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-14 03:20:53,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:53,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901390458] [2024-11-14 03:20:53,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901390458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:53,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:53,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:20:53,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448587769] [2024-11-14 03:20:53,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:53,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:20:53,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:53,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:20:53,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:20:53,057 INFO L87 Difference]: Start difference. First operand 450 states and 464 transitions. Second operand has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:54,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:54,384 INFO L93 Difference]: Finished difference Result 450 states and 464 transitions. [2024-11-14 03:20:54,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:20:54,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 130 [2024-11-14 03:20:54,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:54,386 INFO L225 Difference]: With dead ends: 450 [2024-11-14 03:20:54,386 INFO L226 Difference]: Without dead ends: 449 [2024-11-14 03:20:54,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:20:54,387 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 50 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:54,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 21 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 03:20:54,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-14 03:20:54,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2024-11-14 03:20:54,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 419 states have (on average 1.071599045346062) internal successors, (449), 434 states have internal predecessors, (449), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:20:54,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 463 transitions. [2024-11-14 03:20:54,411 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 463 transitions. Word has length 130 [2024-11-14 03:20:54,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:54,411 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 463 transitions. [2024-11-14 03:20:54,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:54,411 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 463 transitions. [2024-11-14 03:20:54,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-14 03:20:54,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:54,413 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:54,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-14 03:20:54,413 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:20:54,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:54,413 INFO L85 PathProgramCache]: Analyzing trace with hash 533191434, now seen corresponding path program 1 times [2024-11-14 03:20:54,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:54,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333619684] [2024-11-14 03:20:54,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:54,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:54,487 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-14 03:20:54,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:54,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333619684] [2024-11-14 03:20:54,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333619684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:54,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:54,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:20:54,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327035047] [2024-11-14 03:20:54,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:54,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:20:54,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:54,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:20:54,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:20:54,489 INFO L87 Difference]: Start difference. First operand 449 states and 463 transitions. Second operand has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:55,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:55,962 INFO L93 Difference]: Finished difference Result 449 states and 463 transitions. [2024-11-14 03:20:55,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:20:55,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 131 [2024-11-14 03:20:55,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:55,964 INFO L225 Difference]: With dead ends: 449 [2024-11-14 03:20:55,965 INFO L226 Difference]: Without dead ends: 448 [2024-11-14 03:20:55,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:20:55,966 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 43 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:55,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 29 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 03:20:55,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-14 03:20:55,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2024-11-14 03:20:55,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 419 states have (on average 1.0692124105011933) internal successors, (448), 433 states have internal predecessors, (448), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:20:55,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 462 transitions. [2024-11-14 03:20:55,999 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 462 transitions. Word has length 131 [2024-11-14 03:20:55,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:55,999 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 462 transitions. [2024-11-14 03:20:56,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:56,000 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 462 transitions. [2024-11-14 03:20:56,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-14 03:20:56,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:56,001 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:56,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-14 03:20:56,002 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:20:56,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:56,002 INFO L85 PathProgramCache]: Analyzing trace with hash -211493414, now seen corresponding path program 1 times [2024-11-14 03:20:56,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:56,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019197634] [2024-11-14 03:20:56,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:56,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:20:56,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [768636577] [2024-11-14 03:20:56,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:56,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:56,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:56,039 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:56,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:20:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:56,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:20:56,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:56,631 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:20:56,632 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:20:57,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:57,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019197634] [2024-11-14 03:20:57,194 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:20:57,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768636577] [2024-11-14 03:20:57,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768636577] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:20:57,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1377337987] [2024-11-14 03:20:57,196 INFO L159 IcfgInterpreter]: Started Sifa with 92 locations of interest [2024-11-14 03:20:57,197 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:20:57,197 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:20:57,197 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:20:57,197 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:20:59,798 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 121 for LOIs [2024-11-14 03:20:59,855 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:21:08,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1377337987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:21:08,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:21:08,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [5] total 24 [2024-11-14 03:21:08,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307450509] [2024-11-14 03:21:08,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:21:08,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 03:21:08,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:21:08,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 03:21:08,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=646, Unknown=0, NotChecked=0, Total=812 [2024-11-14 03:21:08,799 INFO L87 Difference]: Start difference. First operand 448 states and 462 transitions. Second operand has 21 states, 19 states have (on average 4.684210526315789) internal successors, (89), 18 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:21:13,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:21:15,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:21:17,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:21:19,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:21:21,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:21:23,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:21:30,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:21:30,339 INFO L93 Difference]: Finished difference Result 449 states and 462 transitions. [2024-11-14 03:21:30,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 03:21:30,340 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 4.684210526315789) internal successors, (89), 18 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 135 [2024-11-14 03:21:30,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:21:30,342 INFO L225 Difference]: With dead ends: 449 [2024-11-14 03:21:30,342 INFO L226 Difference]: Without dead ends: 341 [2024-11-14 03:21:30,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 276 SyntacticMatches, 60 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1710 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=429, Invalid=1375, Unknown=2, NotChecked=0, Total=1806 [2024-11-14 03:21:30,344 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 290 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 32 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:21:30,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 3 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1235 Invalid, 5 Unknown, 0 Unchecked, 15.6s Time] [2024-11-14 03:21:30,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-14 03:21:30,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-11-14 03:21:30,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 327 states have (on average 1.0122324159021407) internal successors, (331), 328 states have internal predecessors, (331), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:21:30,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 343 transitions. [2024-11-14 03:21:30,370 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 343 transitions. Word has length 135 [2024-11-14 03:21:30,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:21:30,370 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 343 transitions. [2024-11-14 03:21:30,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 4.684210526315789) internal successors, (89), 18 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:21:30,371 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 343 transitions. [2024-11-14 03:21:30,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-14 03:21:30,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:21:30,373 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2024-11-14 03:21:30,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 03:21:30,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-14 03:21:30,574 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:21:30,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:21:30,574 INFO L85 PathProgramCache]: Analyzing trace with hash -270166386, now seen corresponding path program 2 times [2024-11-14 03:21:30,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:21:30,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591197218] [2024-11-14 03:21:30,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:30,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:21:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:21:30,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2118837826] [2024-11-14 03:21:30,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:21:30,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:21:30,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:21:30,632 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:21:30,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 03:21:30,795 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-14 03:21:30,795 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:21:30,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:21:30,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:21:31,044 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:21:31,045 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:21:31,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:21:31,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591197218] [2024-11-14 03:21:31,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:21:31,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118837826] [2024-11-14 03:21:31,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118837826] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:21:31,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [285964903] [2024-11-14 03:21:31,162 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-14 03:21:31,162 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:21:31,163 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:21:31,163 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:21:31,163 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:21:33,160 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-14 03:21:33,172 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:21:59,302 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19042#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_216| Int)) (and (<= (* |v_ULTIMATE.start_main_~y~0#1_216| |v_ULTIMATE.start_main_~y~0#1_216| |v_ULTIMATE.start_main_~y~0#1_216| |v_ULTIMATE.start_main_~y~0#1_216|) 1537228672809129301) (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_216| |v_ULTIMATE.start_main_~y~0#1_216| |v_ULTIMATE.start_main_~y~0#1_216| |v_ULTIMATE.start_main_~y~0#1_216| |v_ULTIMATE.start_main_~y~0#1_216|)))) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-14 03:21:59,302 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:21:59,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:21:59,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-14 03:21:59,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066410297] [2024-11-14 03:21:59,302 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:21:59,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:21:59,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:21:59,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:21:59,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=582, Unknown=1, NotChecked=0, Total=702 [2024-11-14 03:21:59,304 INFO L87 Difference]: Start difference. First operand 341 states and 343 transitions. Second operand has 6 states, 5 states have (on average 33.8) internal successors, (169), 6 states have internal predecessors, (169), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:21:59,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:21:59,716 INFO L93 Difference]: Finished difference Result 342 states and 343 transitions. [2024-11-14 03:21:59,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:21:59,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 33.8) internal successors, (169), 6 states have internal predecessors, (169), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 177 [2024-11-14 03:21:59,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:21:59,720 INFO L225 Difference]: With dead ends: 342 [2024-11-14 03:21:59,720 INFO L226 Difference]: Without dead ends: 341 [2024-11-14 03:21:59,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 253 SyntacticMatches, 103 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2106 ImplicationChecksByTransitivity, 26.1s TimeCoverageRelationStatistics Valid=119, Invalid=582, Unknown=1, NotChecked=0, Total=702 [2024-11-14 03:21:59,723 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:21:59,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 66 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:21:59,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-14 03:21:59,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-11-14 03:21:59,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 327 states have (on average 1.0091743119266054) internal successors, (330), 328 states have internal predecessors, (330), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:21:59,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 342 transitions. [2024-11-14 03:21:59,759 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 342 transitions. Word has length 177 [2024-11-14 03:21:59,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:21:59,760 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 342 transitions. [2024-11-14 03:21:59,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 33.8) internal successors, (169), 6 states have internal predecessors, (169), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:21:59,760 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 342 transitions. [2024-11-14 03:21:59,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-14 03:21:59,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:21:59,763 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2024-11-14 03:21:59,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 03:21:59,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-14 03:21:59,964 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:21:59,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:21:59,965 INFO L85 PathProgramCache]: Analyzing trace with hash 935820277, now seen corresponding path program 3 times [2024-11-14 03:21:59,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:21:59,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938514727] [2024-11-14 03:21:59,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:59,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:22:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:22:00,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [720038664] [2024-11-14 03:22:00,061 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:22:00,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:22:00,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:22:00,064 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:22:00,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:22:00,275 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:22:00,275 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:22:00,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:22:00,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:22:00,730 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 368 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:22:00,730 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:22:00,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:22:00,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938514727] [2024-11-14 03:22:00,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:22:00,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720038664] [2024-11-14 03:22:00,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720038664] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:22:00,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1384787120] [2024-11-14 03:22:00,906 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-14 03:22:00,906 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:22:00,906 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:22:00,906 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:22:00,906 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:22:03,419 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-14 03:22:03,453 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:22:31,304 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20577#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_226| Int)) (and (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_226| |v_ULTIMATE.start_main_~y~0#1_226| |v_ULTIMATE.start_main_~y~0#1_226| |v_ULTIMATE.start_main_~y~0#1_226| |v_ULTIMATE.start_main_~y~0#1_226|)) (<= (* |v_ULTIMATE.start_main_~y~0#1_226| |v_ULTIMATE.start_main_~y~0#1_226| |v_ULTIMATE.start_main_~y~0#1_226| |v_ULTIMATE.start_main_~y~0#1_226|) 1537228672809129301))) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-14 03:22:31,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:22:31,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:22:31,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-14 03:22:31,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463185171] [2024-11-14 03:22:31,305 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:22:31,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:22:31,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:22:31,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:22:31,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=674, Unknown=1, NotChecked=0, Total=812 [2024-11-14 03:22:31,307 INFO L87 Difference]: Start difference. First operand 341 states and 342 transitions. Second operand has 7 states, 6 states have (on average 36.666666666666664) internal successors, (220), 7 states have internal predecessors, (220), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 03:22:31,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:22:31,734 INFO L93 Difference]: Finished difference Result 342 states and 342 transitions. [2024-11-14 03:22:31,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:22:31,735 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 36.666666666666664) internal successors, (220), 7 states have internal predecessors, (220), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 231 [2024-11-14 03:22:31,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:22:31,736 INFO L225 Difference]: With dead ends: 342 [2024-11-14 03:22:31,736 INFO L226 Difference]: Without dead ends: 341 [2024-11-14 03:22:31,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 329 SyntacticMatches, 133 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2940 ImplicationChecksByTransitivity, 27.8s TimeCoverageRelationStatistics Valid=137, Invalid=674, Unknown=1, NotChecked=0, Total=812 [2024-11-14 03:22:31,738 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:22:31,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 75 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:22:31,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-14 03:22:31,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-11-14 03:22:31,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 327 states have (on average 1.0061162079510704) internal successors, (329), 328 states have internal predecessors, (329), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:22:31,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 341 transitions. [2024-11-14 03:22:31,771 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 341 transitions. Word has length 231 [2024-11-14 03:22:31,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:22:31,772 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 341 transitions. [2024-11-14 03:22:31,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 36.666666666666664) internal successors, (220), 7 states have internal predecessors, (220), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 03:22:31,772 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 341 transitions. [2024-11-14 03:22:31,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-14 03:22:31,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:22:31,775 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1] [2024-11-14 03:22:31,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-14 03:22:31,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-14 03:22:31,975 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:22:31,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:22:31,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1041886748, now seen corresponding path program 4 times [2024-11-14 03:22:31,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:22:31,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058793309] [2024-11-14 03:22:31,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:31,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:22:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:22:32,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1105050415] [2024-11-14 03:22:32,041 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:22:32,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:22:32,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:22:32,043 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:22:32,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 03:22:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:22:32,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:22:32,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:22:32,546 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 0 proven. 590 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:22:32,546 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:22:32,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:22:32,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058793309] [2024-11-14 03:22:32,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:22:32,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105050415] [2024-11-14 03:22:32,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105050415] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:22:32,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1554755762] [2024-11-14 03:22:32,701 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-14 03:22:32,701 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:22:32,701 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:22:32,701 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:22:32,701 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:22:34,631 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-14 03:22:34,646 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:23:09,239 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22276#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256) (exists ((|v_ULTIMATE.start_main_~y~0#1_237| Int)) (and (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237|)) (<= (* |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237|) 1537228672809129301))))' at error location [2024-11-14 03:23:09,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:23:09,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:23:09,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-14 03:23:09,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860000105] [2024-11-14 03:23:09,240 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:23:09,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:23:09,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:09,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:23:09,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=723, Unknown=1, NotChecked=0, Total=870 [2024-11-14 03:23:09,242 INFO L87 Difference]: Start difference. First operand 341 states and 341 transitions. Second operand has 8 states, 7 states have (on average 38.714285714285715) internal successors, (271), 8 states have internal predecessors, (271), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:23:09,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:09,711 INFO L93 Difference]: Finished difference Result 382 states and 383 transitions. [2024-11-14 03:23:09,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:23:09,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 38.714285714285715) internal successors, (271), 8 states have internal predecessors, (271), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 285 [2024-11-14 03:23:09,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:09,714 INFO L225 Difference]: With dead ends: 382 [2024-11-14 03:23:09,714 INFO L226 Difference]: Without dead ends: 381 [2024-11-14 03:23:09,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 402 SyntacticMatches, 167 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3791 ImplicationChecksByTransitivity, 34.5s TimeCoverageRelationStatistics Valid=146, Invalid=723, Unknown=1, NotChecked=0, Total=870 [2024-11-14 03:23:09,716 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:09,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 86 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:23:09,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-14 03:23:09,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 351. [2024-11-14 03:23:09,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 337 states have (on average 1.0059347181008902) internal successors, (339), 338 states have internal predecessors, (339), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:23:09,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 351 transitions. [2024-11-14 03:23:09,749 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 351 transitions. Word has length 285 [2024-11-14 03:23:09,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:09,750 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 351 transitions. [2024-11-14 03:23:09,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 38.714285714285715) internal successors, (271), 8 states have internal predecessors, (271), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:23:09,751 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 351 transitions. [2024-11-14 03:23:09,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-14 03:23:09,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:09,753 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:09,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 03:23:09,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-14 03:23:09,954 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:23:09,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:09,954 INFO L85 PathProgramCache]: Analyzing trace with hash 800073377, now seen corresponding path program 2 times [2024-11-14 03:23:09,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:09,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250521996] [2024-11-14 03:23:09,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:09,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:10,851 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 0 proven. 804 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 03:23:10,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:10,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250521996] [2024-11-14 03:23:10,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250521996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:23:10,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038365858] [2024-11-14 03:23:10,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:23:10,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:10,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:10,855 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:23:10,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 03:23:11,755 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-14 03:23:11,755 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:23:11,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 03:23:11,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:23:12,316 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 0 proven. 834 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:12,317 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:23:12,991 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 0 proven. 804 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 03:23:12,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038365858] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:23:12,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1194777645] [2024-11-14 03:23:12,998 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-14 03:23:12,998 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:23:12,999 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:23:12,999 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:23:12,999 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:23:15,745 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-14 03:23:15,768 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:24:11,747 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25130#(and (<= 11 ~counter~0) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y~0#1_248| Int)) (and (<= |ULTIMATE.start_main_~x~0#1| (+ (* |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248|) 307445734561825860)) (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248|)) (= (+ (* (* |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248|) 15) (* (* |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248|) 6) (* 10 (* |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248|))) (+ |v_ULTIMATE.start_main_~y~0#1_248| (* 30 |ULTIMATE.start_main_~x~0#1|))))) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-14 03:24:11,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:24:11,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:24:11,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 16] total 22 [2024-11-14 03:24:11,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233143081] [2024-11-14 03:24:11,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:24:11,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 03:24:11,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:24:11,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 03:24:11,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1510, Unknown=0, NotChecked=0, Total=1722 [2024-11-14 03:24:11,750 INFO L87 Difference]: Start difference. First operand 351 states and 351 transitions. Second operand has 22 states, 22 states have (on average 22.0) internal successors, (484), 22 states have internal predecessors, (484), 9 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2024-11-14 03:24:12,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:24:12,333 INFO L93 Difference]: Finished difference Result 571 states and 574 transitions. [2024-11-14 03:24:12,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-14 03:24:12,333 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 22.0) internal successors, (484), 22 states have internal predecessors, (484), 9 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) Word has length 339 [2024-11-14 03:24:12,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:24:12,336 INFO L225 Difference]: With dead ends: 571 [2024-11-14 03:24:12,336 INFO L226 Difference]: Without dead ends: 560 [2024-11-14 03:24:12,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 777 SyntacticMatches, 214 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8324 ImplicationChecksByTransitivity, 56.6s TimeCoverageRelationStatistics Valid=630, Invalid=3030, Unknown=0, NotChecked=0, Total=3660 [2024-11-14 03:24:12,337 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 65 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:24:12,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 752 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:24:12,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-14 03:24:12,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 557. [2024-11-14 03:24:12,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 535 states have (on average 1.0093457943925233) internal successors, (540), 536 states have internal predecessors, (540), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:24:12,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 560 transitions. [2024-11-14 03:24:12,384 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 560 transitions. Word has length 339 [2024-11-14 03:24:12,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:24:12,385 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 560 transitions. [2024-11-14 03:24:12,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 22.0) internal successors, (484), 22 states have internal predecessors, (484), 9 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2024-11-14 03:24:12,386 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 560 transitions. [2024-11-14 03:24:12,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-14 03:24:12,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:24:12,388 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1] [2024-11-14 03:24:12,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 03:24:12,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-14 03:24:12,589 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:24:12,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:24:12,589 INFO L85 PathProgramCache]: Analyzing trace with hash -323232509, now seen corresponding path program 5 times [2024-11-14 03:24:12,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:24:12,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256128257] [2024-11-14 03:24:12,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:24:12,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:24:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:24:12,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [560809031] [2024-11-14 03:24:12,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:24:12,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:24:12,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:24:12,668 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:24:12,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 03:24:13,372 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-14 03:24:13,373 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:24:13,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:24:13,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:24:13,863 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 0 proven. 864 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 03:24:13,863 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:24:14,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:24:14,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256128257] [2024-11-14 03:24:14,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:24:14,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560809031] [2024-11-14 03:24:14,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560809031] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:24:14,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [445486007] [2024-11-14 03:24:14,011 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-14 03:24:14,011 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:24:14,012 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:24:14,013 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:24:14,013 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:24:15,810 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-14 03:24:15,824 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:24:56,931 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '27507#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (exists ((|v_ULTIMATE.start_main_~y~0#1_260| Int)) (and (<= (* |v_ULTIMATE.start_main_~y~0#1_260| |v_ULTIMATE.start_main_~y~0#1_260| |v_ULTIMATE.start_main_~y~0#1_260| |v_ULTIMATE.start_main_~y~0#1_260|) 1537228672809129301) (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_260| |v_ULTIMATE.start_main_~y~0#1_260| |v_ULTIMATE.start_main_~y~0#1_260| |v_ULTIMATE.start_main_~y~0#1_260| |v_ULTIMATE.start_main_~y~0#1_260|)))) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-14 03:24:56,931 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:24:56,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:24:56,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-14 03:24:56,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99648514] [2024-11-14 03:24:56,932 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:24:56,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:24:56,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:24:56,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:24:56,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=724, Unknown=0, NotChecked=0, Total=870 [2024-11-14 03:24:56,935 INFO L87 Difference]: Start difference. First operand 557 states and 560 transitions. Second operand has 9 states, 8 states have (on average 40.25) internal successors, (322), 9 states have internal predecessors, (322), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:24:57,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:24:57,481 INFO L93 Difference]: Finished difference Result 558 states and 560 transitions. [2024-11-14 03:24:57,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:24:57,482 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 40.25) internal successors, (322), 9 states have internal predecessors, (322), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 339 [2024-11-14 03:24:57,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:24:57,484 INFO L225 Difference]: With dead ends: 558 [2024-11-14 03:24:57,485 INFO L226 Difference]: Without dead ends: 557 [2024-11-14 03:24:57,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 705 GetRequests, 475 SyntacticMatches, 202 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4708 ImplicationChecksByTransitivity, 41.0s TimeCoverageRelationStatistics Valid=146, Invalid=724, Unknown=0, NotChecked=0, Total=870 [2024-11-14 03:24:57,486 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:24:57,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 93 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:24:57,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-14 03:24:57,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2024-11-14 03:24:57,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 535 states have (on average 1.0074766355140188) internal successors, (539), 536 states have internal predecessors, (539), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:24:57,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 559 transitions. [2024-11-14 03:24:57,536 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 559 transitions. Word has length 339 [2024-11-14 03:24:57,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:24:57,537 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 559 transitions. [2024-11-14 03:24:57,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 40.25) internal successors, (322), 9 states have internal predecessors, (322), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:24:57,538 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 559 transitions. [2024-11-14 03:24:57,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-14 03:24:57,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:24:57,541 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1] [2024-11-14 03:24:57,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-14 03:24:57,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:24:57,742 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:24:57,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:24:57,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1794652330, now seen corresponding path program 6 times [2024-11-14 03:24:57,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:24:57,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528400873] [2024-11-14 03:24:57,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:24:57,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:24:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:24:57,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [169277043] [2024-11-14 03:24:57,865 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:24:57,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:24:57,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:24:57,867 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:24:57,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 03:24:58,822 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:24:58,822 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:24:58,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:24:58,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:24:59,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 03:24:59,459 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:24:59,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:24:59,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528400873] [2024-11-14 03:24:59,635 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:24:59,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169277043] [2024-11-14 03:24:59,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169277043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:24:59,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1431462472] [2024-11-14 03:24:59,637 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-14 03:24:59,637 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:24:59,638 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:24:59,638 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:24:59,638 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:25:02,019 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-14 03:25:02,037 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:25:50,310 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '29995#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256) (exists ((|v_ULTIMATE.start_main_~y~0#1_273| Int)) (and (<= (* |v_ULTIMATE.start_main_~y~0#1_273| |v_ULTIMATE.start_main_~y~0#1_273| |v_ULTIMATE.start_main_~y~0#1_273| |v_ULTIMATE.start_main_~y~0#1_273|) 1537228672809129301) (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_273| |v_ULTIMATE.start_main_~y~0#1_273| |v_ULTIMATE.start_main_~y~0#1_273| |v_ULTIMATE.start_main_~y~0#1_273| |v_ULTIMATE.start_main_~y~0#1_273|)))))' at error location [2024-11-14 03:25:50,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:25:50,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:25:50,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-14 03:25:50,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303980910] [2024-11-14 03:25:50,311 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:25:50,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:25:50,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:25:50,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:25:50,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=773, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:25:50,312 INFO L87 Difference]: Start difference. First operand 557 states and 559 transitions. Second operand has 10 states, 9 states have (on average 41.44444444444444) internal successors, (373), 10 states have internal predecessors, (373), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:25:50,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:25:50,914 INFO L93 Difference]: Finished difference Result 558 states and 559 transitions. [2024-11-14 03:25:50,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:25:50,915 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 41.44444444444444) internal successors, (373), 10 states have internal predecessors, (373), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 393 [2024-11-14 03:25:50,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:25:50,917 INFO L225 Difference]: With dead ends: 558 [2024-11-14 03:25:50,917 INFO L226 Difference]: Without dead ends: 557 [2024-11-14 03:25:50,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 813 GetRequests, 549 SyntacticMatches, 235 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5707 ImplicationChecksByTransitivity, 48.2s TimeCoverageRelationStatistics Valid=157, Invalid=773, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:25:50,919 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:25:50,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 102 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:25:50,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-14 03:25:50,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2024-11-14 03:25:50,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 535 states have (on average 1.005607476635514) internal successors, (538), 536 states have internal predecessors, (538), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:25:50,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 558 transitions. [2024-11-14 03:25:50,969 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 558 transitions. Word has length 393 [2024-11-14 03:25:50,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:25:50,970 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 558 transitions. [2024-11-14 03:25:50,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 41.44444444444444) internal successors, (373), 10 states have internal predecessors, (373), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:25:50,970 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 558 transitions. [2024-11-14 03:25:50,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2024-11-14 03:25:50,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:25:50,974 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1] [2024-11-14 03:25:51,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-14 03:25:51,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:25:51,175 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:25:51,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:25:51,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1418064145, now seen corresponding path program 7 times [2024-11-14 03:25:51,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:25:51,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3013957] [2024-11-14 03:25:51,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:25:51,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:25:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:25:51,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370602031] [2024-11-14 03:25:51,309 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:25:51,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:25:51,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:25:51,313 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:25:51,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 03:25:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:25:52,104 INFO L255 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 03:25:52,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:25:52,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 1568 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:25:52,811 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:25:52,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:25:52,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3013957] [2024-11-14 03:25:52,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:25:52,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370602031] [2024-11-14 03:25:52,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370602031] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:25:52,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [533465429] [2024-11-14 03:25:52,994 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-14 03:25:52,994 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:25:52,994 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:25:52,994 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:25:52,994 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:25:55,499 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-14 03:25:55,516 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:26:48,918 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32646#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (exists ((|v_ULTIMATE.start_main_~y~0#1_287| Int)) (and (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_287| |v_ULTIMATE.start_main_~y~0#1_287| |v_ULTIMATE.start_main_~y~0#1_287| |v_ULTIMATE.start_main_~y~0#1_287| |v_ULTIMATE.start_main_~y~0#1_287|)) (<= (* |v_ULTIMATE.start_main_~y~0#1_287| |v_ULTIMATE.start_main_~y~0#1_287| |v_ULTIMATE.start_main_~y~0#1_287| |v_ULTIMATE.start_main_~y~0#1_287|) 1537228672809129301))) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-14 03:26:48,918 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:26:48,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:26:48,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-14 03:26:48,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442524144] [2024-11-14 03:26:48,918 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:26:48,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:26:48,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:26:48,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:26:48,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=876, Unknown=1, NotChecked=0, Total=1056 [2024-11-14 03:26:48,920 INFO L87 Difference]: Start difference. First operand 557 states and 558 transitions. Second operand has 11 states, 10 states have (on average 42.4) internal successors, (424), 11 states have internal predecessors, (424), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 03:26:49,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:26:49,439 INFO L93 Difference]: Finished difference Result 558 states and 558 transitions. [2024-11-14 03:26:49,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:26:49,440 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 42.4) internal successors, (424), 11 states have internal predecessors, (424), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 447 [2024-11-14 03:26:49,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:26:49,442 INFO L225 Difference]: With dead ends: 558 [2024-11-14 03:26:49,443 INFO L226 Difference]: Without dead ends: 557 [2024-11-14 03:26:49,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 921 GetRequests, 625 SyntacticMatches, 265 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6788 ImplicationChecksByTransitivity, 53.3s TimeCoverageRelationStatistics Valid=179, Invalid=876, Unknown=1, NotChecked=0, Total=1056 [2024-11-14 03:26:49,443 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:26:49,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 109 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:26:49,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-14 03:26:49,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2024-11-14 03:26:49,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 535 states have (on average 1.0037383177570094) internal successors, (537), 536 states have internal predecessors, (537), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:26:49,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 557 transitions. [2024-11-14 03:26:49,484 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 557 transitions. Word has length 447 [2024-11-14 03:26:49,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:26:49,485 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 557 transitions. [2024-11-14 03:26:49,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 42.4) internal successors, (424), 11 states have internal predecessors, (424), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 03:26:49,485 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 557 transitions. [2024-11-14 03:26:49,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2024-11-14 03:26:49,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:26:49,489 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1] [2024-11-14 03:26:49,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 03:26:49,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-14 03:26:49,690 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-14 03:26:49,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:26:49,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1333266888, now seen corresponding path program 8 times [2024-11-14 03:26:49,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:26:49,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328263958] [2024-11-14 03:26:49,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:26:49,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:26:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:26:49,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980016923] [2024-11-14 03:26:49,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:26:49,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:26:49,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:26:49,857 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:26:49,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663689ee-d2f9-490f-a000-7f20e93f0fca/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process